| var baseIndexOf = require('./_baseIndexOf'); |
| |
| /** |
| * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol |
| * that is not found in the character symbols. |
| * |
| * @private |
| * @param {Array} strSymbols The string symbols to inspect. |
| * @param {Array} chrSymbols The character symbols to find. |
| * @returns {number} Returns the index of the first unmatched string symbol. |
| */ |
| function charsStartIndex(strSymbols, chrSymbols) { |
| var index = -1, |
| length = strSymbols.length; |
| |
| while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {} |
| return index; |
| } |
| |
| module.exports = charsStartIndex; |